Vacuum tank



March 23 1926.

C. 5. NELSON y VACUUM TANF,

Filed Feb. .14 1925 :Il Il., ...III Il! Patented Mai'. 23,1926. Y `l e l UNiTED maar seien.

CHARLES S. NELSO, OF COCOLALLA, IDAHO, ASSIGNOR OF ONE-HALF T /VILLIAM E.

JAEGER, 0F SANDPQINTyIDAHO.

VACUUM TANK- Application led February 14, 1925. Serial No. 9,311.

To all whom t may coment: nal combustion for ivithdrawing pressure 55 Be it known that I, CHARLES S. N nnsoN, a from` the vacuuintank in usual manner.

citizen of the United States, residing at A vent tube o is provided for the vacuum Cocolalla, in Bonner County and State of tank and is supported in Athe top of the Idaho, have invented certain nen7 and usemain tank to prevent overflow of gasoline ful Improvements in Vacuum Tanks, of ivhen the supply tank is elevated higher 60 which the following is a specification. than the vent tube7 as when an automobile is The present invention relates to improvedescending a hill or steep ginds. the gasoments iii vacuum tanksof that type having line is peiinitted to ioiv to the carbureter,

1o a float control and maintained oil level for not shown, through the.` feed pipe 6 leading r use in liquid fuel feeding,` systems of interfrom tiie bottom off the main feed tank, and 60 nal combustion engines for automobiles, and the. usual screen c is provided Within the for illuminating and 'heating burners and 'nilwll Dl for Ithis Outlet pipe. Y Othersimlm appliances, h Ihe vent tune opening` and the vacuum i5 The primary object of the invention the Plpe opening are controlled by the position 70 provision of a device of this character which ,Ufa B ligle ioat 7 in. the. vacuum tank. This is simple iii construction and operation, and @gat 15,021.11'1611 ,011 th? Stem 8 1111d 15C11l151111e in 7111011 the pal-ts are Conqpactly @plunged OI Vltltl lllOllOll Wltll lGlltlOll t0 lille Stem in such manner as to assure reliability and between the UPPQTXSOP 9 all@ die lOWeI SOP 2o efficiency in the operation of the vacuum 10 0f the S161 [1116516111 1S 11117013661 at ll 1 tank and gasoline or oil feeding system. By 011th@ 21ml 12 Olli the vaceuum control leyer 75 the utilization of my invention a uniform 11111311 @0191115 the 110W 01 gasohn@ 111i@ bhe and regulated feed of the gasoline is auto` 1113111 tank fom 1119/ Supply tank T111? level matcauy accomplished. I has three arms 13 l14 and l5 and is pivoted 25 The invention Consists in Canam novel at 16 or suspended vvitl-iin the vacuumtank 80 combinations and arrangements of the coii- 110111 111e 111.51011@ 11 111151011651 211% the 111119?. trol or operating parts as Will hereinafter 51d@ 0f 1311 llfl 0l 13019 l Y be more fully set forth and claimed. The lever 151110171@Gd Wlth a s112111 11501011 In the accompanying drawings I have by the use of the spring` 18 having` its endeillustrated one Complete example of uw alnchoiledy to the bracket andr to the .end of physical embodiment of my invention t1@ 211111 l0 @fthe lGVGl- Flins With the 85 wherein the parts are combined and ar- 175161111111 1211111 @P611 t0 the 61125111@ Cylmdel ranged in accordance with the best mode I andto t-he supply tank as shown, when the have thus fai devised for the practical aplS eluted to the l11'0l131: 161761 the IGVGY plication of the principles of my invention. l lCtUflffP/Cl W1l1- a sliep action. The `float The ligure of drawing` illustrates graphit rises With i'elation to the stem until it 90 muy a Vel-tical Section of the dpplian and strikes the stop 9 then continued movement Shows the relation of pum of the float causes the stein to swing,` the le` In carrying out my invention I utilize a V111' 011 113111101 311111916111115 fm' 1119 $111111?? o main feed tank indicated as a Whole by the t0 311111.18' 51C1`0SS 111@ 111101/ 16 111119191111011 the r numeral 1 and preferably of cylindrical 1@Ver is actuated with the spring action. 9"

shape. IVithin the main tank the gasoline A ClOWll'Wlld mOi/ement of the float is peri'eceiving or vacuum 21s supported at its upn 101mm 111-21 reverse OpeatlOn and the lever per end, a iianged top la for the main tank 1S Sllppefl into action by the reverse inov`e-l being secured as by bolts 2 to the flanged ment 'Of the spring.-

top of the vacuum tank, with packing or The level' arm 13 oel'les at its free end a 100 gaskets for affording a liquid and air tight ball valve 19 for closing the vent oi' valvejoint, seat of the vent tube as shown.

The inlet 'or supply pipe 3 opens tl'iiougli A Slmlld'l ball Valve 01' Suction valve 2l.

thetop or lid of the main tank aiid'commuiS carried at the opposite end of the lever ui .ates With the usual tfi'asoline supply tank arm 14 and adapted to close the suction valve 10Q not shown, and the suction or vacuum pipe seat 22. When the vent valve is open the l which enters the main tank top coin1nunisuction valveis closed and vice versa, and Cates with the intake manifold of the inter these valves are automatically actuated by the controlling float to maintain the required gasoline level in the Vacuinn tank.

JAdmission of gasoline from the vacuum tank to the lnain feed tank is permitted through the valved seat or port 23 located in the bottoni of the vacuinn tank, and a ball valve 24tin the feed tank l controls this flow of gasoline from one tank to the other.

The feed valve 24 is under control of a float 9.5 in the feed `tank which eo-operates with a bell crank lever 26 that also has a snap action. The lever is pivoted on a bracket 27 in the feed tank and supported from the bottom of the vacnuin tank, and the spring 2S snaps the lever to open or close the feed valve due to the action of the float.

The appliance is equipped with the usual accessories as a priming cup and valve 29 carried by the top ln and opening` into the vacuuni tank, a drain cock a() for the feed tank, and a ventor overflow pipe 3l coinninnicating with the top or upper portion of the feed tank and extending up alongside the tank to near the 'top of the vacuum tank.

The port d3 is comparatively large to perniit a quick flow of gasoline from the vacunar tank to the feed tankand the vcntrpipo 3l permits atmospheric pressure in the feed tank to insure flow `of gasoline therefrom to the carbureter. The float automatically controls the admission of gasoline to the feed tank and the valve 2li is closed with a snap action by the overbalanced sprine' QS when the proper level is reached.

Thus the two floats by their inovenient automatically control suction frein the vacur-.rn tank and feed of gasoline to the vaeuuin tank, and admission of gasoline from the vacuuin tank to the feed tank respectively`Y the feed tank being at all tiines in connnnnication with the carbureter.

Having thus fully described iny invention what I claim as new and desire to secure by Lettersv Patent is- In a vacuuin tank provided with spaced suction and vent ports in the top thereof, a bracket depending from the tank top between said ports, a three arrn lever pivoted on said bracket, two arins of said lever eX- tending oppositely from one end thereof and having balls forn'led on the endstlicreof for closing said ports, a snap throw spring` er;- tending` between s( id bracket and the end of the third lever arin, said last nained arm having an arin extending` laterally there-- from, and a float carrying stein pivoted ou the outer end of said laterally extending' arin for control of said lever movement.

In testii'nony whereof l aflir; my signature.

CHARLES S. NELSON. 

